/**
 * Admin panel — role-based content management.
 * Uses app variables for consistency.
 * Override layout.css so admin page can scroll (layout sets html/body overflow: hidden).
 * admin.css is only loaded on admin.html, so these overrides apply only there.
 */
html {
  height: auto;
  min-height: 100%;
  overflow: auto;
}
body {
  height: auto;
  min-height: 100vh;
  overflow: auto;
}
/* Role guard: school only */
.admin-role-guard {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--app-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--app-space-lg);
}
.admin-role-guard-inner {
  max-width: 400px;
  text-align: center;
}
.admin-role-guard-inner h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--app-text);
  margin: 0 0 var(--app-space-md);
}
.admin-role-guard-inner p {
  font-size: var(--app-text-sm);
  color: var(--app-text-secondary);
  margin: 0 0 var(--app-space-lg);
  line-height: 1.5;
}
.admin-role-guard-inner .admin-btn {
  display: inline-block;
  padding: 12px 24px;
  text-decoration: none;
}

.admin-wrap {
  display: flex;
  min-height: 100vh;
  background: var(--app-bg);
}
.admin-sidebar {
  width: 260px;
  min-width: 260px;
  background: var(--app-surface);
  border-right: 1px solid var(--app-border);
  padding: var(--app-space-md);
  position: sticky;
  top: 0;
  max-height: 100vh;
  overflow-y: auto;
}
.admin-sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 0;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--app-border-soft);
}
.admin-sidebar-logo img { width: 36px; height: 36px; object-fit: contain; border-radius: var(--app-radius-sm); }
.admin-sidebar-logo span { font-weight: 700; font-size: 1rem; color: var(--app-text); }
.admin-nav-list { list-style: none; margin: 0; padding: 0; }
.admin-nav-list li { margin: 0 0 2px; }
.admin-nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--app-radius-sm);
  color: var(--app-text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: background 0.15s, color 0.15s;
}
.admin-nav-link:hover { background: var(--app-bg-elevated); color: var(--app-text); }
.admin-nav-link.active { background: var(--app-primary-soft); color: var(--app-primary); font-weight: 600; }
.admin-nav-link .icon { font-size: 1.1rem; opacity: 0.9; }
.admin-main {
  flex: 1;
  padding: var(--app-space-xl);
  overflow-y: auto;
}
.admin-section { display: none; }
.admin-section.active { display: block; }
.admin-section-header {
  margin-bottom: var(--app-space-xl);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}
.admin-section-title { font-size: 1.5rem; font-weight: 700; margin: 0 0 4px; color: var(--app-text); }
.admin-section-subtitle { font-size: 0.9375rem; color: var(--app-text-secondary); margin: 0; }
.admin-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--app-space-md);
  margin-bottom: var(--app-space-xl);
}
.admin-stat {
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-lg);
  padding: var(--app-space-md);
  text-align: center;
}
.admin-stat-num { font-size: 1.75rem; font-weight: 700; color: var(--app-primary); display: block; }
.admin-stat-label { font-size: 0.8125rem; color: var(--app-text-secondary); }
.admin-card {
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-lg);
  padding: var(--app-space-md);
  margin-bottom: var(--app-space-md);
  box-shadow: var(--app-shadow);
}
.admin-card-title { font-size: 1rem; font-weight: 700; margin: 0 0 12px; color: var(--app-text); }
.admin-form-group { margin-bottom: 14px; }
.admin-form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--app-text);
  margin-bottom: 4px;
}
.admin-form-input,
.admin-form-select,
.admin-form-textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--app-border);
  border-radius: 8px;
  font-size: 0.9375rem;
  font-family: inherit;
}
.admin-form-textarea { min-height: 80px; resize: vertical; }
.admin-form-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }
.admin-roles-wrap { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 6px; }
.admin-role-chk { display: inline-flex; align-items: center; gap: 6px; font-size: 0.875rem; color: var(--app-text-secondary); }
.admin-role-chk input { width: 18px; height: 18px; }
.admin-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.admin-btn {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s, background 0.15s;
}
.admin-btn-primary { background: var(--app-primary); color: #fff; }
.admin-btn-primary:hover { opacity: 0.92; }
.admin-btn-secondary { background: var(--app-bg-elevated); color: var(--app-text); border: 1px solid var(--app-border); }
.admin-btn-secondary:hover { background: var(--app-border-soft); }
.admin-btn-danger { background: #ef4444; color: #fff; }
.admin-btn-danger:hover { opacity: 0.92; }
.admin-table-wrap { overflow-x: auto; }
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.admin-table th,
.admin-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--app-border-soft); }
.admin-table th { font-weight: 600; color: var(--app-text); background: var(--app-bg-elevated); }
.admin-table tr:hover td { background: var(--app-bg-elevated); }
.admin-table-actions { display: flex; gap: 8px; }
.admin-table-actions button { padding: 4px 10px; font-size: 0.8125rem; border-radius: 6px; cursor: pointer; border: 1px solid var(--app-border); background: var(--app-surface); }
.admin-table-actions button:hover { background: var(--app-border-soft); }
.admin-upload-row { display: flex; align-items: center; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
.admin-upload-row input[type="file"] { font-size: 0.875rem; }
.admin-hint { font-size: 0.8125rem; color: var(--app-text-muted); margin: 8px 0 0; }
.admin-empty { text-align: center; padding: 32px 16px; color: var(--app-text-secondary); font-size: 0.9375rem; }
.admin-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}
.admin-modal {
  background: var(--app-surface);
  border-radius: var(--app-radius-lg);
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--app-space-lg);
  box-shadow: var(--app-shadow-lg);
}
.admin-modal-title { font-size: 1.125rem; font-weight: 700; margin: 0 0 16px; }
@media (max-width: 768px) {
  .admin-wrap { flex-direction: column; }
  .admin-sidebar { width: 100%; max-height: none; position: relative; }
  .admin-main { padding: var(--app-space-md); }
}